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Finding the Fourth Proportional to 236,140.60, 354,210.90 and 200,711.20

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Solution

The fourth proportional to 236,140.60, 354,210.90 and 200,711.20 is: 301,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,140.60 : 354,210.90 = 200,711.20 : x
  2. Step 2: Convert to fraction form
    236,140.60/354,210.90 = 200,711.20/x
  3. Step 3: Cross multiply
    236,140.60x = 354,210.90 × 200,711.20
  4. Step 4: Simplify right side
    236,140.60x = 71,094,094,792.08
  5. Step 5: Solve for x
    x = 71,094,094,792.08/236,140.60
  6. Step 6: Final answer
    x = 301,066.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.